car traveling south

Q: As you stand near a railroad track, a train passes by at a speed of 33.5 m/s while sounding its horn…

A: Speed of train/ source, vs=33.5 m/sActual frequency of horn, f=219 HzSpeed of sound, v=344 m/sSpeed…

Q: A stationary person hears a frequency of 76 Hz from an approaching car. When the car is moving away…

A: The frequency heard by the stationary person when the source is approaching him can be represented…

Q: A bat can detect small objects, such as an insect, whose size is approximately equal to one…

A: Given data The frequency is given as f = 9.01 x 104 Hz. The speed of the sound in the air is given…

Q: A person riding in car is blowing an air horn at a frequency of 302 Hz. You are sitting on a bench…

A: According to Doppler effect,  When observer is fixed and source is moving away from observer, then…

Q: The sound of a loud rock concert has an intensity of 0.1240.124 W/m2. What is the intensity level in…

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Q: A train passes by a little boy at the depot. As it moves away from the boy at 65 m/s, the whistle…

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Q: A certain sound source is increased in sound level by 32 dB. By what multiple is (a) its intensity…

A: The increase in sound level is given by ∆β = 10 log10I2I1, where ∆β = β2-β1 = difference in sound…

Q: You approach a stationary sound source with a speed such that the frequency of sound you hear is 17%…

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Q: A person at rest hears a trumpet note of frequency fi from a source moving toward him with a…

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Q: Two cars approach each other at 50 m/s when one car starts to beep its horn at a frequency of 475HZ.…

A: Both the cars are approaching each other with a speed of 50 m/s, i.e. the speeds of the source vs =…

Q: A person wears a hearing aid that uniformly increases the intensity level of all audible frequencies…

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Q: you stand near a railroad track, a train passes by at a speed of 30.1 m/s while sounding its horn at…

A: Write the given values of the problem- Frequency of the train horn (f)=213 Hz Speed of the train…

Q: A fire truck emits an 880 Hz siren. As the truck approaches an observer on the sidewalk, he…

A: Given data The frequency of the siren from the truck is fo=880 Hz The observed frequency if the…

Q: At a distance of 4 m from a certain sound source, the sound level intensity is 70 dB. What is the…

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Q: An ambulance moving at 35 m/s sounds its siren whose frequency is 410 Hz. A car is moving in the…

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Q: An ambulance witha siren emitting a whine at 1640 Hz overtakes and passes a cyclist pedaling a bike…

A: Given: frequency of siren, f=1640 Hzfrequency observed by cyclist when van passes, f'=1630 Hzspeed…

Q: A truck is moving at 35 meters/second. The car horn on the truck emits a 235 Hz sound. The speed of…

A: Given Speed of the truck is vs=35 m/s Speed of sound is given ass v=343 m/s Frequency emitted by the…

Q: An ambulance with a siren emitting a whine at 1790 Hz overtakes and passes a cyclist pedaling a bike…

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Q: A train approaches a station and sounds its horn which has a natural frequency of 150 Hz. The train…

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Q: A car hom emits a frequency of 400 Hz. A car traveling at 20.0 m/s sounds the horn as it goes away…

A: Consider the formula for the apparent frequency is given by, f'=fVV+VS

Q: An eagle flying at 28 m/s emits a cry whose frequency is 370 Hz. A blackbird is moving in the same…

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Q: A 57-dB sound wave strikes an eardrum whose area is 5.0×10−5m^2. The intensity of the reference…

A: The formula for the sound intensity level is: Take anti-log on both sides.

Q: On the planet Venus a rare volcanic eruption occurs. The sound of it is 30 Hz and it has a…

A: Given Wavelength is 13.7 m Frequency is 30 Hz.

Q: Two automobiles are equipped with the same single-frequency horn. When one is at rest and the other…

A: Given data The velocity of the first automobile is given as v = 15 m/s. The beat frequency is given…

Q: An observer is moving towards a sound source of constant frequency with a velocity of 40 ms' .He…

A: Given: The velocity of the observer is 40 m/s. The frequency is 560 Hz. The velocity of the observer…

Q: Calculate the frequency (in Hz) of the 2nd overtone emitted by an open  pipe of length 1.5 m. The…

A: Given : An open pipe. Length, L = 1.5m Speed of sound in air, v = 343 m/s

Q: One day when the speed of sound in air is 343 m/s, a fire truck traveling at vs = 25 m/s has a siren…

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Q: A guitar string produces a musical note with a wavelength of 78.0 cm. If the speed of the sound in…

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Q: A car horn emits a frequency of 400 Hz. A car traveling at 20.0 m/s sounds the horn as it goes away…

A: Given:speed of car, vs = 20 m/sspeed of sound in air, v = 343 m/sfrequency, f=400 Hz

Q: k when an  approaching driver blows his  horn. If the true frequency of  the horn is 264 Hz and the…

A: You are crossing in a  crosswalk when an approaching driver blows his horn.  If the true frequency…

Q: As a train moves away from you, the frequency of its whistle is determined to be 475 Hz. If the…

A: Given data:  Observer is at rest  Observed frequency (f') = 475 Hz Actual frequency (f) = 500 Hz…

Q: Two cars have identical horns, each emitting a frequency of fs = 395 Hz. One of the cars is moving…

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Q: car traveling south at 36 m/s sounds a 456 Hz horn. What frequency is heard by the truck driver if…

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Q: As you stand near a railroad track, a train passes by at a speed of 31.5 m/s while sounding its horn…

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Q: What is the third overtone of a standing wave in a 0.800 m pipe open on one end and closed on…

A: Given pipe open at one end and closed at another. Length (l)=0.800 m Speed of sound (v)=343 m/s…

Q: You are driving along a highway at 35 m/s when you hear the siren of a police car approaching you…

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Q: A person in a car is driving at 65 mi/h toward a ferry whose whistle is blowing at 400 Hz. The ferry…

A: solution as

Q: A train approaches a station and sounds it’s horn which has a natural frequency of 155 Hz. The train…

A: given; velocity of source vs=39 m/s velocity of sound v  = 340 m/s natural frequency f = 155 Hz

Q: A machine used in a hospital has an operating sound intensity level of 72 dB. If 10 of these…

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Q: A good hearing aid will uniformly increase the sound intensity of all audible frequencies of sound…

A: Given data The increase in the sound intensity is ∆β=31.7 dB The intensity of the picked-up sound…

Q: A certain jet aircraft produces sound of 140-dB intensity at a distance of 100 ft. How many miles…

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Q: The siren emits sound with a frequency of 600 Hz. What is the wavelength of the sound? What…

A: Given data:  Frequency of sound (f) = 600 Hz Speed of listener (Vo ) = 10 m/s

Q: Find the difference in loudness between an average office with an intensity of 1.26 x 10-7 W/m2 and…

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Q: What is the frequency (in Hz) of the fundamental note emitted by an open pipe of length 1.2 m? The…

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Q: A good hearing aid will uniformly increase the sound intensity of all audible frequencies of sound…

A: Difference in sound intensity B2-B1=10logI2I0-10logI1I0=10logI2I1

Q: For the scenario in Question 9 with the speed of eagle 11.00 m/s, what frequency does the blackbird…

A: Speed of eagle,Vs=11 m/s Speed of blackbird,V0=11.35 m/s Frequency of sound,n =370 Hz Speed of…